Mainz 2026 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 79: Cavity QED and QED III
Q 79.5: Vortrag
Freitag, 6. März 2026, 15:30–15:45, P 4
Casimir Control: A new Mechanism for Cavity Quantum Materials — Ola Carlsson1,2, Sambuddha Chattopadhyay1, Jonathan B. Curtis1, •Frieder Lindel1,3, Lorenzo Graziotto3,4, Jerome Faist3,4, and Eugene Demler1 — 1Institute for Theoretical Physics, ETH Zürich, Zürich 8093, Switzerland — 2Department of Physics and Arnold Sommerfeld Center for Theoretical Physics (ASC), Ludwig-Maximilians-Universität München, Theresienstr. 37, D-80333 München, Germany — 3Quantum Center, ETH Zürich, Zürich 8093, Switzerland — 4Institute of Quantum Electronics, ETH Zürich, Zürich 8093, Switzerland
External classical radiation can control properties of quantum materials. Recently, an alternative has been proposed, in which the external driving is replaced by the quantized modes of a dark cavity.
In my talk, we will discuss Casimir control [1] as a new mechanism for cavity control of electronic nematic order in Fermi liquids, where different electronic order orientations are often energetically degenerate. We will find that the zero-point energy of the electromagnetic continuum, the Casimir energy, depends on the properties of the material system. This can be exploited to stabilize particular orientations of the nematic order. The experimental feasibility will be illustrated using the example of a quantum Hall stripe system [2].
[1] O. Carlsson et al., preprint at arXiv:2510.05088 (2025).
[2] L. Graziotto et al., preprint at arXiv:2502.15490 (2025).
Keywords: Cavity QED Materials; Casimir effect; Cavity QED